Your documentation has been updated and the problem has been resolved.

Thanks

The confusion is mine. The code I copied to this post was from your documentation, and it did not render. I had removed the extra commas.

I have attached an image of the code that I actually added to the functions.php file. I also uploaded an image of the admin menu after adding the code.

I seem to be missing something from the instructions as I do not get the results that I expect.